Presentation
Presented with pelvic colic.
Patient Data
Age: 35 years
Gender: Female
From the case:
Polycystic ovaries
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Axial

These MRI images reveal the characteristic appearance of the polycystic ovaries:
- both ovaries are enlarged in size.
- both ovaries contain an abnormally large number of follicles (>10-12 each). All follicles show a more-or-less similar size with no dominant follicles detected (size <10 mm).
- the follicles display an abnormal distribution being arranged peripherally (showing the characteristic "string of pearls" appearance).
Case Discussion
When diagnosing polycystic ovaries, one can apply the ten rule:
- Volume of each ovary (>10 cm3).
- Each ovary contains (>10 follicles).
- Each follicle diameter (<10 mm).